Crane trolley



R. i. HARRY AND C. S. PROUDFOOT CRANE TROLLEY. APPLICATION FILED MAY I4, i920.

Patened Sept. 26g @El 3 SHEETS-SHEET I.

INVENTORS Paened Sept Z6, 1922;.

'3 SHEETS-'SHEET 2.

Ce S PRQUFOGTl` CRANE TROLLEY,

APPucATloN FILED r/:AY 14, :920.

HARRY ANG INVENTORS cfmjf.

R. J. HARRY AND C. S4. PROUDFUOT.

CRANE TROLLEY. APPLICATION FILED III/IY I4. 1920A 3 SHEETS-SHEET 3.

INVENTRS ml may concern.

Wn that We, liosnn'r l-Linnr onnioor, citizens ci the o 'i ci lii'unhali, ifi .ni:A` enel. Countj :nnsyl?nnin,4 venterl certain new' and rnprovern ne in Crane Trolleys, of h the following is specification.

`to s trolley,

*ention elstes roule l y neving thereon ciiserlvanteges. from the that her heen fixeri rela hoistv or hss been moin u s 'the niein hoist. in hns heen nossihle to utilise sing ladies and thereof., snel hut the "n'irlreil @ne object et present invention is, therefore, prov. le s crane trolley` having ho n mein enel :iuniliory hoist, in which the ausiliari* hoist is capable ci? tipping ladies, or ci seing ette-cheri 'to articles to he hantiled, from either siifle thereof anti at both t eine limits 'travel of the moin hoist. iother object of the invention is to pro Vine e. crono trollej/'hrwing both main and rili:try'hoists7 inwhich the hoisting cables hoth hoists lie between the two crgine the placing of footon the outside of both "ring rirsWi-ngs, Figure "who Jene trolley of c e thereof.

n View of the trolley, .rv/Loi; the pressi sriif the moin hoist 1, hsvi upon rails 3 or 'he auxiliary hI rruclr Wheels et d' i hoist anal supported on t.: i'i une of the main hoist.

foie pulleys in mein loriclles enti in the v freine oi the main hoist, and .5t around the mein hoisting drum 11 which' issn serial intenser is mounted on e she-ft 12, in the frame of the main hoist. .l

The auxiliary hoisting cables 13 pass over suitable li in the auxiliary bridles 15 and in the 'freine ot the auxiliary hoist and around the auxiliar hoisting ch'um 16 on u shaft i7 journaled in the frame' of thl nuiriliary hoist 5.

it will benotecl that the auxiliary hoist s so positioned that it lies wholly between shles 9 of the mein hoist, and can theretrevel the entire longitudinal extent ie insin hoist Without interference Jfrom thc' mein hoistingl cables.

ineens for actuating the main hoisting .drum 11 comprise sny electric motor 18 and suitable yspeed reducing connections from the motor to the hoisting drum. Such connections comprise e. pinion 19 on the motor shaft, s gear 20 on n shaft 21 :incl meshing 'with the pinion 19, e pinion 22 on shaft 21 and meshing with e geen* 23 on e second shaft 24, and e pinion 25 on shaft 24 and meshing with sfqear 26 on the hoisting drum 11.

riihe means for causing longitudinul travel of the main hoist l comprise an electric motor mounted in the frame ot the main hoist Lend suitable actuating connections from this motor to the truck wheels 2 of the inain hoist. u A pinion 289 on the shaft ot' motor 27 meshes with s' gear 29 on a shaft 30, which extends the complete Width of the main hoist and is journalecl in the freine thereof. On shaft. 30, adjacent its extremities, are pinions 31 which mesh with gears 32 mounted on short shafts 33 which are journeled in the freine of `the main hoist. Gears y552 inesh with large gears St'onl the axles 35 oi the truck Wheels 2. 'a i i This, arrangement ci actuating connec-f tions is such that power is transmitted to the wheels of the moin hoist Without in any Way obstructing the'clear space Within the side members. or frame of the hoist. The 'i auxiliary hoist is thus reeto move to either extreme limit of the main hoist The ineens for :ictuetin f the auxiliary hoisting drum 16 comprise an electric motor 36 and suitable speed reducing-connection. from the motor to the hoisting drum. Such connections comprise a pinion 37' on the motor shaft and meshing with a gear 88 one shaft 39, which is journoled titi in the frame of the auxiliary hoist and extends transversely the width thereof. On this shaft 39 is a pinion 4() meshing With a gear 4l on the auxiliary hoisting drum 16. Y The means for propelling the auxiliary hoist 5 longitudinally of the main hoist l comprise an electric motor 42, and suitable connections to the truck wheels 6 of the auxiliary hoist. Such connections comprise a pinion 43 on the shaft of motor 42, which meshes With a gear 44 on the transverse plni'on 4G shaft 45, and on shaft 45 is a meshing with a gear 47 on the shaft of axle 48 of the truck wheels 6.

It will be seen that the auxiliary hoist of the trolley is self propelled and self contained. lts arrangement on the main hoist and the arrangement of the actuating and hoisting means and connections of the main hoist, permit it to move longitudinally of the main hoist from one extreme limit to the other thereof, The auxiliary hoist may thus be utilized to tin ladles from either side thereof, or its hoisting cables may be attached to either side of an article to be handled. t

lhe arrangement of the \trolley is such that the hoisting cables of b\oth the main and auxiliary hoist depend between the gil-ders of the crane in connee n with which the trolley is employed. 1 is thus left on'both sides of the forrfoot walks and for the mounting the bridge traversing motor of the crane. l*

Other advantages of the invention will be apparent to those skilled in the art to Which the invention appert-ains, and as it is susceptible of a number of modifications without, departing` from theI spirit of the invention, no limitationsiother than those contained in the appended claims are to be imhpgsgd, v

le claim zl. The combination with a traveling crane, having a self ropelled main hoist adapted to travel lengthwise of said crane, said hoist comprising a Wheeled frame, and having suitable hoisting cables trained over and depending from suitable pulley sheaves journaled at each side of said frame, of a self propelled auxiliary hoist supported on and adapted to move longitudinally of said main hoist, said auxiliary hoist comprising a wheeled frame adapted to travel upon a pair of rails supported on the side girders of the frame of said main hoist, a hoisting drum journaled in said frame of said auxiliary hoist, hoisting cables trained around said drum and over suitable pulley sheaves in said frame and in the hoisting bridle, and means mounted on said auxiliary hoist for operating` said drum.

2. The combination with a traveling crane, having a self propelled main hoist adapted to tra vel lengthwise of said crane, said hoist comprising` a wheeled frame, and having suitable hoisting ables trained around a hoistingdrum and over suitable pulley sheaves journaled at each side of said frame, of a self propelled auxiliary hoist supported on and adapted to move longitudinally of said. main hoist, said auxiliary hoist conn prising a wheeled frame adapted to travel upon a pair of rails supported on the side girders of the frame of said main hoist, a hoisting drum journaled in said frame of said auxiliary hoist, hoisting cables trained around said drum, and a motor mounted on said auxiliary hoist adapted to operate said drum.

ln Witness whereof, We have hereunto signed our names.

.ROBERT J. HARRY.

CHARLES S, PRO UF'R 

